Datenblatt-Suchmaschine für elektronische Bauteile |
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ML2731CT Datenblatt(PDF) 1 Page - Micro Linear Corporation |
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ML2731CT Datenblatt(HTML) 1 Page - Micro Linear Corporation |
1 / 12 page January, 2000 PRELIMINARY DATASHEET The ML2731 is a power amplifier (PA) bias controller with support circuits for a typical radio transceiver. The IC integrates a PA bias controller, a PA DC switch, a crystal oscillator circuit, a negative voltage generator and two voltage regulators. It can be used with GaAs FETs and silicon bipolar devices. Micro Linear’s ML2731, along with the ML2712 and the ML2713, form a complete transceiver solution for the 2.4 GHz IEEE802.11 communication standard, as well as other wireless ISM communication products. In addition to supporting Micro Linear’s transceiver chip set, the ML2731 can stand alone as: A compact bias voltage controller A compact negative voltage generator A compact crystal oscillator n Sets PA current and power output using a bias control loop n Integrates a PA DC supply switch n Prevents PA power-on if negative voltage is not present n Integrates all circuits needed for supporting a crystal oscillator with 10MHz to 40MHz frequency range n Incorporates a fast starting, high switching frequency, negative voltage generator requiring only small ceramic capacitors n Contains voltage regulators for an oscillator, a negative voltage generator and a 50mA 3.0V LDO output n Requires less than 1mA of current when powered down n Supply voltage ranges from 3.3V to 5.5V GENERAL DESCRIPTION ML2731 PA Bias Controller FEATURES SIMPLIFIED BLOCK DIAGRAM APPLICATIONS n Cellular and Cordless Radios n WLAN Radios n Radios with GaAs FET Power Amplifiers n Fixed and Mobile radio transceivers PRELIMINARY Voltage Regulator Sine & square wave drivers CLKO REGO Bias Control VPA VBIAS Baseband Controller (e.g. MSM7730B) Crystal PDN XOUT XIN PAEN NEGEN ICON SINO Crystal Oscillator VNEG Negative voltage generator C1 C2 GaAs FET Power Amplifier PA on/off switch and current sense ML2712 ML2713 Radio ML2731 |
Ähnliche Teilenummer - ML2731CT |
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Ähnliche Beschreibung - ML2731CT |
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